CPC C11D 11/0047 (2013.01) [C11D 3/0073 (2013.01); C11D 3/04 (2013.01); C11D 3/046 (2013.01); C11D 3/28 (2013.01); C11D 3/30 (2013.01); C11D 3/43 (2013.01)] | 15 Claims |
1. A cleaning composition comprising: water; a fluorine compound; an alkanolamine compound; and a corrosion inhibitor,
wherein the corrosion inhibitor is a mixture of a first corrosion inhibitor represented by the following Formula 1 and a second corrosion inhibitor represented by the following Formula 2, wherein the corrosion inhibitor is a mixture mixed with 0.1 to 10 parts by weight of the second corrosion inhibitor, based on 1 part by weight of the first corrosion inhibitor:
wherein:
R1 and R3 are each independently halogen, amino, hydroxy, cyano, nitro, a carboxyl group, C1-20 alkoxy, C1-20 alkyl, or C1-20 aminoalkyl;
R2 and R4 are each independently hydrogen or C1-20 alkyl; and
n and m are each independently an integer selected from 0 to 4.
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